Seiko Cal. 6616 - 917

The Seiko 6616-917 represents an important milestone in Seiko's 1987 lineup. Powered by the 6616 caliber with 18j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-40acc2347e23]

Also known as: Helmet, Silverwave

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1987

Related Models

• Seiko 3896-664
• Seiko 3816-193
• Seiko 3843-938
• Seiko 0768-924
• Seiko 7029-493
• Seiko 6382-683
• Seiko 7082-626
• Seiko 7087-530
• Seiko 7036-363
• Seiko 6363-447
• Seiko 5692-596
• Seiko 4453-331